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未标记肽与标记蛋白复合体系中同核三键J(H(N)Hα)耦合常数的测量:应用于与丙型肝炎病毒(HCV)NS3蛋白蛋白酶结构域结合的十肽抑制剂

Measurement of homonuclear three-bond J(H(N)Halpha) coupling constants in unlabeled peptides complexed with labeled proteins: application to a decapeptide inhibitor bound to the proteinase domain of the NS3 protein of hepatitis C virus (HCV).

作者信息

Cicero D O, Barbato G, Koch U, Ingallinella P, Bianchi E, Sambucini S, Neddermann P, De Francesco R, Pessi A, Bazzo R

机构信息

IRBM P. Angeletti, Pomezia (Rome), Italy.

出版信息

J Biomol NMR. 2001 May;20(1):23-9. doi: 10.1023/a:1011281527761.

DOI:10.1023/a:1011281527761
PMID:11430752
Abstract

A new isotope-filtered experiment has been designed to measure homonuclear three-bond J(H(N)Halpha) coupling constants of unlabeled peptides complexed with labeled proteins. The new experiment is based on the 3D HNHA pulse scheme, and belongs to the 'quantitative J-correlation' type. It has been applied to a decapeptide inhibitor bound to the proteinase domain of the NS3 protein of human hepatitis C virus (HCV).

摘要

已设计出一种新的同位素过滤实验,用于测量与标记蛋白复合的未标记肽的同核三键J(H(N)Hα)耦合常数。新实验基于3D HNHA脉冲序列,属于“定量J相关”类型。它已应用于与人类丙型肝炎病毒(HCV)NS3蛋白的蛋白酶结构域结合的十肽抑制剂。

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Determination of H(N),H (α) and H (N),C' coupling constants in (13)C, (15)N-labeled proteins.测定(13)C、(15)N 标记蛋白质中的 H(N)、H(α)和 H(N)、C'耦合常数。
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(H)NCAHA and (H)CANNH experiments for the determination of the vicinal coupling constants related to the phi-torsion angle.用于测定与φ扭转角相关的邻位耦合常数的(H)NCAHA和(H)CANNH实验。
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